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CloudWatch log metric filter and alarm are not set for IAM policy changes Affecting CloudWatch service in AWS

Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Monitoring / Accounts Monitoring

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    Frameworks
    AWS-Well-Architected CIS-AWS CIS-Controls HIPAA ISO-27001 NIST-800-53 PCI-DSS
  • Snyk ID SNYK-CC-00159
  • credit Snyk Research Team
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Description

Monitoring changes to IAM policies helps ensure authentication and authorization controls remain intact.

How to fix?

Create an aws_cloudwatch_log_metric_filter and aws_cloudwatch_metric_alarm with an appropriate pattern attribute set for an aws_cloudwatch_log_group and aws_cloudtrail set of resources.

Use the following pattern attribute set:

$.eventName=DeleteGroupPolicy
$.eventName=PutGroupPolicy
$.eventName=PutRolePolicy
$.eventName=PutUserPolicy
$.eventName=CreatePolicy
$.eventName=DeletePolicy
$.eventName=CreatePolicyVersion
$.eventName=DeletePolicyVersion
$.eventName=AttachRolePolicy
$.eventName=DetachRolePolicy
$.eventName=AttachUserPolicy
$.eventName=DetachUserPolicy
$.eventName=AttachGroupPolicy
$.eventName=DetachGroupPolicy